Fleck, H. R. (1951). Plastics scientific and technological. London: Temple Press Limited.
Dyfyniad Arddull ChicagoFleck, H. R. Plastics Scientific and Technological. London: Temple Press Limited, 1951.
Dyfyniad MLAFleck, H. R. Plastics Scientific and Technological. London: Temple Press Limited, 1951.
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